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-rw-r--r--Demos/Host/LowLevel/MIDIHost/MIDIHost.c239
-rw-r--r--Demos/Host/LowLevel/MIDIHost/MIDIHost.h2
2 files changed, 113 insertions, 128 deletions
diff --git a/Demos/Host/LowLevel/MIDIHost/MIDIHost.c b/Demos/Host/LowLevel/MIDIHost/MIDIHost.c
index 6924fd448..e89b26168 100644
--- a/Demos/Host/LowLevel/MIDIHost/MIDIHost.c
+++ b/Demos/Host/LowLevel/MIDIHost/MIDIHost.c
@@ -50,7 +50,8 @@ int main(void)
for (;;)
{
- MIDI_Host_Task();
+ MIDIHost_Task();
+
USB_USBTask();
}
}
@@ -99,6 +100,35 @@ void EVENT_USB_Host_DeviceUnattached(void)
*/
void EVENT_USB_Host_DeviceEnumerationComplete(void)
{
+ puts_P(PSTR("Getting Config Data.\r\n"));
+
+ uint8_t ErrorCode;
+
+ /* Get and process the configuration descriptor data */
+ if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
+ {
+ if (ErrorCode == ControlError)
+ puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
+ else
+ puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
+
+ printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ return;
+ }
+
+ /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
+ if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
+ {
+ printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
+ " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ return;
+ }
+
+ puts_P(PSTR("MIDI Device Enumerated.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
@@ -128,147 +158,102 @@ void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
}
-/** Task to set the configuration of the attached device after it has been enumerated, and to read in
- * note on/off messages from the attached MIDI device and print it to the serial port. When the board
- * joystick or buttons are pressed, note on/off messages are sent to the attached device.
+/** Task to read in note on/off messages from the attached MIDI device and print it to the serial port.
+ * When the board joystick or buttons are pressed, note on/off messages are sent to the attached device.
*/
-void MIDI_Host_Task(void)
+void MIDIHost_Task(void)
{
- uint8_t ErrorCode;
+ if (USB_HostState != HOST_STATE_Configured)
+ return;
+
+ Pipe_SelectPipe(MIDI_DATA_IN_PIPE);
- switch (USB_HostState)
+ if (Pipe_IsINReceived())
{
- case HOST_STATE_Addressed:
- puts_P(PSTR("Getting Config Data.\r\n"));
-
- /* Get and process the configuration descriptor data */
- if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
- {
- if (ErrorCode == ControlError)
- puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
- else
- puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
-
- printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-
- /* Indicate error via status LEDs */
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
- /* Wait until USB device disconnected */
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
-
- /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
- if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
- {
- printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
- " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-
- /* Indicate error via status LEDs */
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
- /* Wait until USB device disconnected */
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
+ MIDI_EventPacket_t MIDIEvent;
- puts_P(PSTR("MIDI Device Enumerated.\r\n"));
+ Pipe_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
- USB_HostState = HOST_STATE_Configured;
- break;
- case HOST_STATE_Configured:
- Pipe_SelectPipe(MIDI_DATA_IN_PIPE);
+ if (!(Pipe_BytesInPipe()))
+ Pipe_ClearIN();
- if (Pipe_IsINReceived())
- {
- MIDI_EventPacket_t MIDIEvent;
+ bool NoteOnEvent = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_ON >> 4));
+ bool NoteOffEvent = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_OFF >> 4));
- Pipe_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
-
- if (!(Pipe_BytesInPipe()))
- Pipe_ClearIN();
-
- bool NoteOnEvent = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_ON >> 4));
- bool NoteOffEvent = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_OFF >> 4));
-
- if (NoteOnEvent || NoteOffEvent)
- {
- printf_P(PSTR("MIDI Note %s - Channel %d, Pitch %d, Velocity %d\r\n"), NoteOnEvent ? "On" : "Off",
- ((MIDIEvent.Data1 & 0x0F) + 1),
- MIDIEvent.Data2, MIDIEvent.Data3);
- }
- }
-
- Pipe_SelectPipe(MIDI_DATA_OUT_PIPE);
-
- if (Pipe_IsOUTReady())
- {
- uint8_t MIDICommand = 0;
- uint8_t MIDIPitch;
-
- static uint8_t PrevJoystickStatus;
- uint8_t JoystickStatus = Joystick_GetStatus();
- uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
-
- /* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */
- uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));
-
- if (JoystickChanges & JOY_LEFT)
- {
- MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
- MIDIPitch = 0x3C;
- }
-
- if (JoystickChanges & JOY_UP)
- {
- MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
- MIDIPitch = 0x3D;
- }
-
- if (JoystickChanges & JOY_RIGHT)
- {
- MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
- MIDIPitch = 0x3E;
- }
-
- if (JoystickChanges & JOY_DOWN)
- {
- MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
- MIDIPitch = 0x3F;
- }
+ if (NoteOnEvent || NoteOffEvent)
+ {
+ printf_P(PSTR("MIDI Note %s - Channel %d, Pitch %d, Velocity %d\r\n"), NoteOnEvent ? "On" : "Off",
+ ((MIDIEvent.Data1 & 0x0F) + 1),
+ MIDIEvent.Data2, MIDIEvent.Data3);
+ }
+ }
- if (JoystickChanges & JOY_PRESS)
- {
- MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
- MIDIPitch = 0x3B;
- }
+ Pipe_SelectPipe(MIDI_DATA_OUT_PIPE);
- /* Check if a MIDI command is to be sent */
- if (MIDICommand)
+ if (Pipe_IsOUTReady())
+ {
+ uint8_t MIDICommand = 0;
+ uint8_t MIDIPitch;
+
+ static uint8_t PrevJoystickStatus;
+ uint8_t JoystickStatus = Joystick_GetStatus();
+ uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
+
+ /* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */
+ uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));
+
+ if (JoystickChanges & JOY_LEFT)
+ {
+ MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+ MIDIPitch = 0x3C;
+ }
+
+ if (JoystickChanges & JOY_UP)
+ {
+ MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+ MIDIPitch = 0x3D;
+ }
+
+ if (JoystickChanges & JOY_RIGHT)
+ {
+ MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+ MIDIPitch = 0x3E;
+ }
+
+ if (JoystickChanges & JOY_DOWN)
+ {
+ MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+ MIDIPitch = 0x3F;
+ }
+
+ if (JoystickChanges & JOY_PRESS)
+ {
+ MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+ MIDIPitch = 0x3B;
+ }
+
+ /* Check if a MIDI command is to be sent */
+ if (MIDICommand)
+ {
+ MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)
{
- MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)
- {
- .CableNumber = 0,
- .Command = (MIDICommand >> 4),
-
- .Data1 = MIDICommand | Channel,
- .Data2 = MIDIPitch,
- .Data3 = MIDI_STANDARD_VELOCITY,
- };
+ .CableNumber = 0,
+ .Command = (MIDICommand >> 4),
- /* Write the MIDI event packet to the pipe */
- Pipe_Write_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
+ .Data1 = MIDICommand | Channel,
+ .Data2 = MIDIPitch,
+ .Data3 = MIDI_STANDARD_VELOCITY,
+ };
- /* Send the data in the pipe to the device */
- Pipe_ClearOUT();
- }
+ /* Write the MIDI event packet to the pipe */
+ Pipe_Write_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
- /* Save previous joystick value for next joystick change detection */
- PrevJoystickStatus = JoystickStatus;
- }
+ /* Send the data in the pipe to the device */
+ Pipe_ClearOUT();
+ }
- break;
+ /* Save previous joystick value for next joystick change detection */
+ PrevJoystickStatus = JoystickStatus;
}
}
diff --git a/Demos/Host/LowLevel/MIDIHost/MIDIHost.h b/Demos/Host/LowLevel/MIDIHost/MIDIHost.h
index ded949e3c..e64868875 100644
--- a/Demos/Host/LowLevel/MIDIHost/MIDIHost.h
+++ b/Demos/Host/LowLevel/MIDIHost/MIDIHost.h
@@ -69,7 +69,7 @@
/* Function Prototypes: */
void SetupHardware(void);
- void MIDI_Host_Task(void);
+ void MIDIHost_Task(void);
void EVENT_USB_Host_HostError(const uint8_t ErrorCode);
void EVENT_USB_Host_DeviceAttached(void);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 03:40:06 +0000